BRPI0410313A - Method and apparatus for the improved use of primary energy sources in integrated steel mills - Google Patents

Method and apparatus for the improved use of primary energy sources in integrated steel mills

Info

Publication number
BRPI0410313A
BRPI0410313A BRPI0410313-0A BRPI0410313A BRPI0410313A BR PI0410313 A BRPI0410313 A BR PI0410313A BR PI0410313 A BRPI0410313 A BR PI0410313A BR PI0410313 A BRPI0410313 A BR PI0410313A
Authority
BR
Brazil
Prior art keywords
gases
crude steel
integrated
specific
coke oven
Prior art date
Application number
BRPI0410313-0A
Other languages
Portuguese (pt)
Inventor
Pablo-Enrique Duarte-Escareno
Eugenio Zendejas-Martinez
Carlos Lizcano-Zulaica
Original Assignee
Hylsa Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hylsa Sa filed Critical Hylsa Sa
Publication of BRPI0410313A publication Critical patent/BRPI0410313A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/008—Composition or distribution of the charge
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C21B13/143—Injection of partially reduced ore into a molten bath
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/285—Plants therefor
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/24—Increasing the gas reduction potential of recycled exhaust gases by shift reactions
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/28—Increasing the gas reduction potential of recycled exhaust gases by separation
    • C21B2100/282—Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/66—Heat exchange
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Botany (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture Of Iron (AREA)

Abstract

"MéTODO E APARELHO PARA USO APERFEIçOADO DE FONTES DE ENERGIA PRIMáRIAS EM USINAS DE AçO INTEGRADAS". Método e usina de aço integrada em que, em lugar de usar gases de forno de coque, gases de conversor e gases de topo de alto-forno disponíveis como combustível para geração de energia ou outras finalidades de aquecimento, esses gases são mais eficientemente utilizados como agentes químicos para redução direta de minérios de ferro produzindo DRI. DRI é carregado em alto-fornos aumentando a produção de aço em bruto, sem aumentar as capacidades da instalação de forno de coque e altos-fornos, sem mudanças na qualidade do aço em bruto, ou se a taxa de produção for mantida, o consumo específico de combustíveis fósseis é reduzido significativamente. A utilização de energia fóssil primária de acordo com a invenção também reduz as emissões específicas de CO~ 2~ por tonelada de aço em bruto. A emissão específica de CO~ 2~ em usinas integradas convencionais é cerca de 1,6 toneladas de CO~ 2~ por tonelada de aço em bruto."METHOD AND APPARATUS FOR PERFECT USE OF PRIMARY POWER SOURCES IN INTEGRATED ACTION PLANTS". Method and integrated steel mill where, instead of using coke oven gases, converter gases and blast furnace top gases available as fuel for power generation or other heating purposes, these gases are most efficiently used as chemical agents for direct reduction of iron ores producing DRI. DRI is loaded into blast furnaces increasing crude steel production without increasing coke oven and blast furnace installation capacities, without changes in crude steel quality, or if production rate is maintained, consumption specific fossil fuel is significantly reduced. The use of primary fossil energy according to the invention also reduces specific CO2 emissions per tonne of crude steel. The specific emission of CO ~ 2 ~ in conventional integrated mills is about 1.6 tons of CO ~ 2 ~ per ton of crude steel.

BRPI0410313-0A 2003-05-15 2004-05-17 Method and apparatus for the improved use of primary energy sources in integrated steel mills BRPI0410313A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47043703P 2003-05-15 2003-05-15
PCT/IB2004/001953 WO2004101829A2 (en) 2003-05-15 2004-05-17 Method and apparatus for improved use of primary energy sources in integrated steel plants

Publications (1)

Publication Number Publication Date
BRPI0410313A true BRPI0410313A (en) 2006-05-23

Family

ID=33452399

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0410313-0A BRPI0410313A (en) 2003-05-15 2004-05-17 Method and apparatus for the improved use of primary energy sources in integrated steel mills

Country Status (6)

Country Link
US (1) US6986800B2 (en)
EP (1) EP1641945B1 (en)
CN (1) CN1791686A (en)
BR (1) BRPI0410313A (en)
MX (1) MXPA05012242A (en)
WO (1) WO2004101829A2 (en)

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Also Published As

Publication number Publication date
EP1641945B1 (en) 2018-12-12
US20040226406A1 (en) 2004-11-18
US6986800B2 (en) 2006-01-17
MXPA05012242A (en) 2006-02-08
EP1641945A2 (en) 2006-04-05
CN1791686A (en) 2006-06-21
WO2004101829A2 (en) 2004-11-25
WO2004101829A3 (en) 2005-03-10

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B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

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